package thread;

public class Demo1 {
    public static boolean flag=false;
    public static void main(String[] args) {
        Thread t=new Thread(new Runnable() {
            @Override
            public void run() {
                while (!flag){
                    System.out.println("hello thread!");
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        });
        t.start();
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        flag=true;
    }
}
